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Nie L, Li S, Gao X, Yuan S, Dong G, Tang G, Song D, Bu L, Zhou Q. Sensitive visual detection of norfloxacin in water by smartphone assisted colorimetric method based on peroxidase-like active cobalt-doped Fe 3O 4 nanozyme. J Environ Sci (China) 2025; 148:198-209. [PMID: 39095157 DOI: 10.1016/j.jes.2023.12.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/25/2023] [Accepted: 12/25/2023] [Indexed: 08/04/2024]
Abstract
Norfloxacin is widely used owing to its strong bactericidal effect on Gram-negative bacteria. However, the residual norfloxacin in the environment can be biomagnified via food chain and may damage the human liver and delay the bone development of minors. Present work described a reliable and sensitive smartphone colorimetric sensing system based on cobalt-doped Fe3O4 magnetic nanoparticles (Co-Fe3O4 MNPs) for the visual detection of norfloxacin. Compared with Fe3O4, Co-Fe3O4 MNPs earned more remarkably peroxidase-like activity and TMB (colorless) was rapidly oxidized to oxTMB (blue) with the presence of H2O2. Interestingly, the addition of low concentration of norfloxacin can accelerate the color reaction process of TMB, and blue deepening of the solution can be observed with the naked eye. However, after adding high concentration of norfloxacin, the activity of nanozyme was inhibited, resulting in the gradual fading of the solution. Based on this principle, a colorimetric sensor integrated with smartphone RGB mode was established. The visual sensor exhibited good linearity for norfloxacin monitoring in the range of 0.13-2.51 µmol/L and 17.5-100 µmol/L. The limit of visual detection was 0.08 µmol/L. In the actual water sample analysis, the spiked recoveries of norfloxacin were over the range of 95.7%-104.7 %. These results demonstrated that the visual sensor was a convenient and fast method for the efficient and accurate detection of norfloxacin in water, which may have broad application prospect.
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Affiliation(s)
- Linchun Nie
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Shuangying Li
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Xiaozhong Gao
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Shuai Yuan
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Guangyu Dong
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Guojin Tang
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Denghao Song
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Lutong Bu
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China
| | - Qingxiang Zhou
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China.
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2
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Liu T, Huang X, Wang C, Liu J, Mao X. A portable solid sampling visualization nano-sensor for soil Cd based on "three-phase transforming" technique. Talanta 2024; 274:126055. [PMID: 38626695 DOI: 10.1016/j.talanta.2024.126055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 04/18/2024]
Abstract
Direct analysis of solid samples is always challenging for ionic sensors due to solidified elemental presence and matrix interference. In this work, a "three-phase transforming" technique was first established to make solid sampling elemental sensors and visual detection possible in the future. For Cd transforming from soil samples, a metal ceramic heater (MCH) electrothermal vaporizer (ETV) coupled with a dielectric barrier discharge quartz trap (DBD-QT) was first utilized to fulfill the solid sampling and preconcentration of Cd in soil; for on-site analysis, a colorimetric sensor based on the trithiocyanuric acid (TMT) functionalized gold nanoparticles (AuNPs) was chosen as a chromogenic analysis model. The portable and miniature ETV-DBD apparatus directly introduced Cd from soil and then captured Cd, consuming only <130 W and 4.5 kg weight; finally, only 200 μL water was injected as eluent to dissolve Cd for the following colorimetric detection. Herein, the Cd analyte underwent a "three-phase transforming" from solid (Cd compounds in soil), to aerosol (vaporization and transportation), to solid (Cd oxides trapped on quartz surface) and to liquid (Cd2+ in eluate). Under optimized conditions, the method limit of detection (LOD) reached 0.04 mg/kg Cd (50 mg sample), fulfilling fast monitoring of Cd contamination in soil, with <20 % relative standard deviations (RSDs). The analysis time was <10 min excluding sample digestion and acid application, as well as the interference of Pb2+ on the AuNPs sensor can be eliminated via the "three-phase transforming" process, proving an excellent anti-interference for solid analysis. This "three-phase transforming" processing technique coupled with colorimetric sensor holds a great potential for direct and on-site analysis in solid samples without complicated handling, providing a fantastic methodology for the application of ionic sensors and making solid sampling elemental sensor and visual detection possible.
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Affiliation(s)
- Tengpeng Liu
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China; College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Xudong Huang
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Chunhui Wang
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Jixin Liu
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China; Beijing Ability Technology Company, Limited, Beijing 100081, China.
| | - Xuefei Mao
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China.
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3
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Sánchez-Carrillo K, Quintanar-Guerrero D, José-Yacamán M, Méndez-Albores A, Vázquez-Durán A. Colorimetric detection of the potent carcinogen aflatoxin B 1 based on the aggregation of L-lysine-functionalized gold nanoparticles in the presence of copper ions. Front Nutr 2024; 11:1425638. [PMID: 38903616 PMCID: PMC11187340 DOI: 10.3389/fnut.2024.1425638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 05/24/2024] [Indexed: 06/22/2024] Open
Abstract
L-lysine functionalized gold nanoparticles (AuNPs-Lys) have been widely used for the detection of worldwide interest analytes. In this work, a colorimetric assay for the detection of the carcinogen aflatoxin B1 (AFB1) based on the aggregation of AuNPs-Lys in the presence of copper ions was developed. For this purpose, AuNPs were synthesized in citrate aqueous solution, functionalized, and further characterized by UV-Vis, fluorescence, Fourier transform infrared spectroscopy (FTIR), nanoparticle tracking analysis (NTA), dynamic light scattering (DLS), and transmission electron microscopy (TEM). In general, AuNPS-Lys (~2.73 × 1011 particles) offered a clear colorimetric response in the presence of AFB1 and Cu2+ ions showing linearity in the range of 6.25 to 200 ng AFB1/mL, with a detection limit of 4.18 ng AFB1/mL via photometric inspection. Moreover, the performance of the proposed methodology was tested using the 991.31 AOAC official procedure based on monoclonal antibodies in maize samples artificially contaminated with AFB1. There was a good agreement between the measured AFB1 concentrations in both assays, the average recoveries for the colorimetric and immunoaffinity assays were between 91.2-98.4% and 96.0-99.2%, respectively. These results indicated that the colorimetric assay could be used as a rapid, eco-friendly, and cost-effective platform for the quantification of AFB1 in maize-based products.
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Affiliation(s)
- Kaori Sánchez-Carrillo
- Unidad de Investigación Multidisciplinaria L14 (Alimentos, Micotoxinas, y Micotoxicosis), Facultad de Estudios Superiores Cuautitlán (FESC), Universidad Nacional Autónoma de México (UNAM), Cuautitlán Izcalli, Mexico
| | | | - Miguel José-Yacamán
- Applied Physics and Materials Science Department and Center for Materials Interfaces in Research and Applications (¡MIRA!), Northern Arizona University, Flagstaff, AZ, United States
| | - Abraham Méndez-Albores
- Unidad de Investigación Multidisciplinaria L14 (Alimentos, Micotoxinas, y Micotoxicosis), Facultad de Estudios Superiores Cuautitlán (FESC), Universidad Nacional Autónoma de México (UNAM), Cuautitlán Izcalli, Mexico
| | - Alma Vázquez-Durán
- Unidad de Investigación Multidisciplinaria L14 (Alimentos, Micotoxinas, y Micotoxicosis), Facultad de Estudios Superiores Cuautitlán (FESC), Universidad Nacional Autónoma de México (UNAM), Cuautitlán Izcalli, Mexico
- Laboratorio de Fisicoquímica L414, FESC, UNAM, Cuautitlán Izcalli, Mexico
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4
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Khan MA, Hoque A, Islam MS, Ghosh S, Alam MA. Coumarin Derivative and Gold Nanoparticle Conjugate as a Selective Fluorescent Sensor for Mercury Ion in Real Sample. J Fluoresc 2024:10.1007/s10895-024-03709-6. [PMID: 38647961 DOI: 10.1007/s10895-024-03709-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 04/05/2024] [Indexed: 04/25/2024]
Abstract
A biphenyl based coumarin fluorescent molecule, N,N'-bis(7-diethylamino-2-oxo-2 H-chromen-3-yl)methylene)biphenyl-2-2'-dicarbohydrazide (molecule 1) has been synthesized and characterised. Photophysical studies of 1 exhibit solvent polarity dependent absorption and emission maxima. Citrate capped gold nanoparticles (AuNPs) have been mixed with molecule 1 for the preparation of AuNPs/1 conjugate. The association constant of the AuNPs/1 conjugate has been calculated to 4.54 × 104 M- 1. The AuNPs/1 conjugate has been found to detect Hg2+ ion selectively by fluorescence enhancement. While addition of molecule 1 into the solution of AuNPs, fluorescence intensity of 1 quenched. On addition of several monovalent, divalent and trivalent metal ion into the solution of AuNPs/1 conjugate separately, there was no change in fluorescence intensity of 1 has been observed. However, upon addition of Hg2+ ion into the solution of AuNPs/1 conjugate, the fluorescence intensity enhancement occurred, indicating released of 1 from the surface of AuNPs and probably aggregation of AuNPs took place in presence of Hg2+ ion. The AuNPs/1 conjugate has been found to have a detection limit of 2.3 × 10- 9 M for Hg2+ ion in aqueous solvent. Meanwhile, the AuNPs/1 conjugate have also been successfully applied for the determination of Hg2+ in real water samples.
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Affiliation(s)
- Mehebub Ali Khan
- Department of Chemistry, Aliah University, Action Area IIA/27, New Town, Kolkata, 700160, India
| | - Anamika Hoque
- Department of Chemistry, Aliah University, Action Area IIA/27, New Town, Kolkata, 700160, India
| | - Md Sanaul Islam
- Department of Chemistry, Aliah University, Action Area IIA/27, New Town, Kolkata, 700160, India
| | - Soumen Ghosh
- Department of Chemistry, Aliah University, Action Area IIA/27, New Town, Kolkata, 700160, India.
| | - Md Akhtarul Alam
- Department of Chemistry, Aliah University, Action Area IIA/27, New Town, Kolkata, 700160, India.
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5
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Wang Y, Xu Y, Jiang R, Dong Q, Sun Y, Li W, Xiong Y, Chen Y, Yi S, Wen Q. A fluorescent probe based on aptamer gold nanoclusters for rapid detection of mercury ions. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:3893-3901. [PMID: 37519193 DOI: 10.1039/d3ay00967j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
The mercuric ion (Hg2+) is a hazardous pollutant that is widely distributed in living organisms, foods, and environments with highly toxic and bio-accumulative properties. In the present study, a fluorescent probe based on aptamer gold nanoclusters (apt-AuNCs) was prepared for the ultrasensitive detection of Hg2+ in food. The principle underlying the prepared probe was the quenching of the fluorescence of apt-AuNCs in the presence of Hg2+ due to the strong metallophilic interactions between the 5d10 centers of Hg2+ and Au+. Under optimal conditions, the proposed fluorescent probe exhibited a linear relationship with Hg2+ concentration within the range of 2-200 nM (R2 = 0.9960). In addition, the limit of detection (LOD) was 0.0158 nM, which is below the Chinese standard value of 25 nM for Hg2+ in food. Furthermore, the apt-AuNCs were applied to detect Hg2+ in spinach and crawfish samples, with recovery percentages of 91.99%∼108.06%, meaning that apt-AuNCs could be used as a promising probe to detect Hg2+ in complex food samples.
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Affiliation(s)
- Ying Wang
- National Engineering Laboratory for Deep Processing of Rice and By-products, Hunan Key Laboratory of Processed Food for Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Hunan Institute Food Quality Supervision Inspection and Research, Changsha 410004, PR China.
| | - Yinyu Xu
- Research Institute of Commodity Quality Inspection in Hunan, Changsha, 410004, PR China
| | - Ruina Jiang
- National Engineering Laboratory for Deep Processing of Rice and By-products, Hunan Key Laboratory of Processed Food for Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Hunan Institute Food Quality Supervision Inspection and Research, Changsha 410004, PR China.
| | - Quanyong Dong
- National Engineering Laboratory for Deep Processing of Rice and By-products, Hunan Key Laboratory of Processed Food for Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Hunan Institute Food Quality Supervision Inspection and Research, Changsha 410004, PR China.
| | - Yingying Sun
- National Engineering Laboratory for Deep Processing of Rice and By-products, Hunan Key Laboratory of Processed Food for Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Hunan Institute Food Quality Supervision Inspection and Research, Changsha 410004, PR China.
| | - Wang Li
- National Engineering Laboratory for Deep Processing of Rice and By-products, Hunan Key Laboratory of Processed Food for Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Hunan Institute Food Quality Supervision Inspection and Research, Changsha 410004, PR China.
| | - Ying Xiong
- National Engineering Laboratory for Deep Processing of Rice and By-products, Hunan Key Laboratory of Processed Food for Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Hunan Institute Food Quality Supervision Inspection and Research, Changsha 410004, PR China.
| | - Yanni Chen
- National Engineering Laboratory for Deep Processing of Rice and By-products, Hunan Key Laboratory of Processed Food for Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Hunan Institute Food Quality Supervision Inspection and Research, Changsha 410004, PR China.
| | - Sili Yi
- School of Chemistry and Materials Science, Huaihua University, Huaihua, 418000, PR China.
| | - Qian Wen
- National Engineering Laboratory for Deep Processing of Rice and By-products, Hunan Key Laboratory of Processed Food for Special Medical Purpose, Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Hunan Institute Food Quality Supervision Inspection and Research, Changsha 410004, PR China.
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6
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Tiwari AK, Yadav HP, Gupta MK, Narayan RJ, Pandey PC. Synthesis of vancomycin functionalized fluorescent gold nanoparticles and selective sensing of mercury (II). Front Chem 2023; 11:1238631. [PMID: 37593107 PMCID: PMC10427866 DOI: 10.3389/fchem.2023.1238631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 07/24/2023] [Indexed: 08/19/2023] Open
Abstract
Mercury ions (Hg2+) are widely found in the environment; it is considered a major pollutant. Therefore, the rapid and reliable detection of Hg2+ is of great technical interest. In this study, a highly fluorescent, sensitive, and selective fluorometric assay for detecting Hg2+ ions was developed using vancomycin functionalized and polyethyleneimine stabilized gold nanoparticles (PEI-f-AuNPs@Van). The as-made gold nanoparticles were highly fluorescent, with excitation and emission maxima occurring at 320 and 418 nm, respectively. The size of nanoparticles was ~7 nm; a zeta potential of ~38.8 mV was determined. The XRD analysis confirmed that the nanoparticles possessed crystalline structure with face centerd cubic symmetry. Using the PEI-f-AuNP@Van probe, the detection limit of Hg2+ ion was achieved up to 0.988 nM (within a linear range) by calculating the KSV. However, the detection limit in a natural environmental sample was shown to be 12.5 nM. Furthermore, the selectivity tests confirmed that the designed probe was highly selective to mercury (II) cations among tested other divalent cations. Owing to its sensitivity and selectivity, this approach for Hg2+ ions detection can be utilized for the analysis of real water samples.
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Affiliation(s)
- Atul Kumar Tiwari
- Department of Chemistry, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Hari Prakash Yadav
- Department of Chemistry, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Munesh Kumar Gupta
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Roger J. Narayan
- Joint Department of Biomedical Engineering, University of North Carolina, Chapel Hill, NC, United States
| | - Prem C. Pandey
- Department of Chemistry, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
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7
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Analyte-triggered in situ “off–on” of Tyndall effect for smartphone-based quantitative nanosensing of Ag+ ions. Photochem Photobiol Sci 2022; 22:631-640. [PMID: 36436206 DOI: 10.1007/s43630-022-00341-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 11/07/2022] [Indexed: 11/29/2022]
Abstract
This work describes two new colorimetric methods for smartphone-based point-of-care nanosensing of toxic Ag+ ions. They were based on the analyte-triggered in situ "off-on" of Tyndall effect (TE) of non-plasmonic colloid or plasmonic metal nanoprobes. The first TE-inspired assay (TEA) focused on the initial analytical application of precipitation reactions where a non-plasmonic AgCl colloid could be formed once mixing the analyte with a NaCl solution. Such AgCl colloid displayed strong visual TE signals after their irradiation by a laser pointer pen, which unexpectedly achieved a detection limit of ~ 400 nM. The second TEA was further designed to reduce the limit down to ~ 78 nM using the analyte's oxidizability towards 3,3',5,5'-tetramethylbenzidine molecules. The redox reaction could create positively charged products that could make negatively charged plasmonic gold nanoparticles aggregate through electrostatic interactions to remarkably amplify their TE responses. Both limits were lower than the minimum allowable Ag+ level (~ 460 nM) in drinking water issued by the World Health Organization. The satisfactory recovery results for detecting Ag+ ions in river, pond, tap, and drinking water additionally demonstrated good selectivity, accuracy and practicality of the proposed methods for potential point-of-need uses in environmental analysis, public health, water safety, etc.
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8
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Chen H, Tian F, Lu C. Engineering Plasmon-Enhanced Fluorescent Gold Nanoclusters Using Bovine Serum Albumin as a Novel Separation Layer for Improved Selectivity. Anal Chem 2022; 94:16461-16469. [DOI: 10.1021/acs.analchem.2c03925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Hongyu Chen
- Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, Zhoukou 466001, China
| | - Fengshou Tian
- Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, Zhoukou 466001, China
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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9
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Escandar GM, Olivieri AC. A Critical Review on the Development of Optical Sensors for the Determination of Heavy Metals in Water Samples. The Case of Mercury(II) Ion. ACS OMEGA 2022; 7:39574-39585. [PMID: 36385878 PMCID: PMC9648124 DOI: 10.1021/acsomega.2c05215] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Recent publications are reviewed concerning the development of sensors for the determination of mercury in drinking water, based on spectroscopic methodologies. A critical analysis is made of the specific details and figures of merit of the developed protocols. Special emphasis is directed to the validation and applicability to real samples in the usual concentration range of mercury, considering the maximum allowed limits in drinking water established by international regulations. It was found that while most publications describe in detail the synthesis, structure, and physicochemical properties of the sensing phases, they do not follow the state of the art in the analytical developments. Recommendations are provided regarding the proper method development and validation, including the setting of the calibration concentration range, the correct estimation of the limits of detection and quantitation, the concentration levels to be set for producing spiked water samples, the number of real samples for adequate validation, the comparison of the developed method with a reference technique, and other analytical features which should be followed.
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10
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Selective and Ultrasensitive Spectroscopic Detection of Mercuric Ion in Aqueous Systems Using Embonic Acid Functionalized Silver Nanoparticle. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02366-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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11
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Li G, Li S, Wang R, Yang M, Zhang L, Zhang Y, Yang W, Wang H. Detection and imaging of Hg(II) in vivo using glutathione-functionalized gold nanoparticles. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:549-559. [PMID: 35812250 PMCID: PMC9235832 DOI: 10.3762/bjnano.13.46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
The optical and biological properties of functionalized gold nanoparticles (GNPs) have been widely used in sensing applications. GNPs have a strong binding ability to thiol groups. Furthermore, thiols are used to bind functional molecules, which can then be used, for example, to detect metal ions in solution. Herein, we describe 13 nm GNPs functionalized by glutathione (GSH) and conjugated with a rhodamine 6G derivative (Rh6G2), which can be used to detect Hg(II) in cells. The detection of Hg2+ ions is based on an ion-catalyzed hydrolysis of the spirolactam ring of Rh6G2, leading to a significant change in the fluorescence of GNPs-GSH-Rh6G2 from an "OFF" to an "ON" state. This strategy is an effective tool to detect Hg2+ ions. In cytotoxicity experiments, GNPs-GSH-Rh6G2 could penetrate living cells and detect mercury ions through the fluorescent "ON" form.
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Affiliation(s)
- Gufeng Li
- Key Laboratory of Resource Clean Conversion in Ethnic Regions, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P. R. China
| | - Shaoqing Li
- Key Laboratory of Resource Clean Conversion in Ethnic Regions, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P. R. China
| | - Rui Wang
- Key Laboratory of Resource Clean Conversion in Ethnic Regions, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P. R. China
| | - Min Yang
- Key Laboratory of Resource Clean Conversion in Ethnic Regions, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P. R. China
| | - Lizhu Zhang
- Key Laboratory of Resource Clean Conversion in Ethnic Regions, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P. R. China
| | - Yanli Zhang
- Key Laboratory of Resource Clean Conversion in Ethnic Regions, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P. R. China
| | - Wenrong Yang
- Key Laboratory of Resource Clean Conversion in Ethnic Regions, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P. R. China
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - Hongbin Wang
- Key Laboratory of Resource Clean Conversion in Ethnic Regions, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P. R. China
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12
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Chatterjee S, Lou XY, Liang F, Yang YW. Surface-functionalized gold and silver nanoparticles for colorimetric and fluorescent sensing of metal ions and biomolecules. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214461] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Hyder A, Buledi JA, Nawaz M, Rajpar DB, Shah ZUH, Orooji Y, Yola ML, Karimi-Maleh H, Lin H, Solangi AR. Identification of heavy metal ions from aqueous environment through gold, Silver and Copper Nanoparticles: An excellent colorimetric approach. ENVIRONMENTAL RESEARCH 2022; 205:112475. [PMID: 34863692 DOI: 10.1016/j.envres.2021.112475] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/01/2021] [Accepted: 11/24/2021] [Indexed: 05/25/2023]
Abstract
Heavy metal pollution has become a severe threat to human health and the environment for many years. Their extensive release can severely damage the environment and promote the generation of many harmful diseases of public health concerns. These toxic heavy metals can cause many health problems such as brain damage, kidney failure, immune system disorder, muscle weakness, paralysis of the limbs, cardio complaint, nervous system. For many years, researchers focus on developing specific reliable analytical methods for the determination of heavy metal ions and preventing their acute toxicity to a significant extent. The modern researchers intended to utilize efficient and discerning materials, e.g. nanomaterials, especially the metal nanoparticles to detect heavy metal ions from different real sources rapidly. The metal nanoparticles have been broadly utilized as a sensing material for the colorimetric detection of toxic metal ions. The metal nanoparticles such as Gold (Au), Silver (Ag), and Copper (Cu) exhibited localized plasmon surface resonance (LPSR) properties which adds an outstanding contribution to the colorimetric sensing field. Though, the stability of metal nanoparticles was major issue to be exploited colorimetric sensing of heavy emtal ions, but from last decade different capping and stabilizing agents such as amino acids, vitmains, acids and ploymers were used to functionalize the metal surface of metal nanoparticles. These capping agents prevent the agglomeration of nanoparticles and make them more active for prolong period of time. This review covers a comprehensive work carried out for colorimetric detection of heavy metals based on metal nanoparticles from the year 2014 to onwards.
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Affiliation(s)
- Ali Hyder
- National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080, Jamshoro, Pakistan
| | - Jamil A Buledi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080, Jamshoro, Pakistan
| | - Muhammad Nawaz
- National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080, Jamshoro, Pakistan
| | - Dhani B Rajpar
- National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080, Jamshoro, Pakistan
| | - Zia-Ul-Hassan Shah
- Department of Soil Science, Sindh Agriculture University, Tandojam, Pakistan
| | - Yasin Orooji
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China.
| | - Mehmet Lütfi Yola
- Hasan Kalyoncu University, Faculty of Health Sciences, Department of Nutrition and Dietetics, Gaziantep, Turkey
| | - Hassan Karimi-Maleh
- Department of Chemical Engineering and Energy, Quchan University of Technology, Quchan, Iran.
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Amber R Solangi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080, Jamshoro, Pakistan.
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14
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Khongsit A, Rajput YS, Meena S, Sharma R. Opportunities for Mercuric Ion Spectrophotometric Determination based on Reduction of Gold Nanoparticles Aggregation by N-containing Cyclic Molecules. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822030066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Zhi L, Zhang S, Li M, Tu J, Lu X. Achieving Ultrasensitive Point-of-Care Assay for Mercury Ions with a Triple-Mode Strategy Based on the Mercury-Triggered Dual-Enzyme Mimetic Activities of Au/WO 3 Hierarchical Hollow Nanoflowers. ACS APPLIED MATERIALS & INTERFACES 2022; 14:9442-9453. [PMID: 35138810 DOI: 10.1021/acsami.1c22764] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The exploration of new strategies for portable detection of mercury ions with high sensitivity and selectivity is of great value for biochemical and environmental analyses. Herein, a straightforward, convenient, label-free, and portable sensing platform based on a Au nanoparticle (NP)-decorated WO3 hollow nanoflower was constructed for the sensitive and selective detection of Hg(II) with a pressure, temperature, and colorimetric triple-signal readout. The resulting Au/WO3 hollow nanoflowers (Au/WO3 HNFs) could efficaciously impede the aggregation of Au NPs, thus significantly improving their catalytic activity and stability. The sensing mechanism of this new strategy using pressure as a signal readout was based on the mercury-triggered catalase mimetic activity of Au/WO3 HNFs. In the presence of the model analyte Hg(II), H2O2 in the detection system was decomposed to O2 fleetly, resulting in a detectable pressure signal. Accordingly, the quantification of Hg(II) was facilely realized based on the pressure changes, and the detection limit could reach as low as 0.224 nM. In addition, colorimetric and photothermal detection of Hg(II) using the Au/WO3 HNFs based on their mercury-stimulated peroxidase mimetic activity was also investigated, and the detection limits were calculated to be 78 nM and 0.22 μM for colorimetric and photothermal methods, respectively. Hence, this nanosensor can even achieve multimode determination of Hg(II) with the concept of point-of-care testing (POCT). Furthermore, the proposed multimode sensing platform also displayed satisfactory sensing performance for the Hg(II) assay in actual water samples. This promising strategy may provide novel insights on the fabrication of a multimode POCT platform for sensitive, selective, and accurate detection of heavy metal ions.
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Affiliation(s)
- Lihua Zhi
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Shengya Zhang
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Min Li
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Jibing Tu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Xiaoquan Lu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
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16
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Abu Shama N, Aşır S, Ozsoz M, Göktürk I, Türkmen D, Yılmaz F, Denizli A. Gold-Modified Molecularly Imprinted N-Methacryloyl-(l)-phenylalanine-containing Electrodes for Electrochemical Detection of Dopamine. Bioengineering (Basel) 2022; 9:bioengineering9030087. [PMID: 35324776 PMCID: PMC8945848 DOI: 10.3390/bioengineering9030087] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/03/2022] [Accepted: 02/14/2022] [Indexed: 11/16/2022] Open
Abstract
A molecularly imprinted polymer-based pencil graphite electrode (MIP PGE) sensor, modified with gold nanoparticles, was utilized for the detection of dopamine in the presence of other biochemical compounds using cyclic voltammetry (CV) and differential pulse voltammetry (DPV), depending on its strong electroactivity function. The pulse voltammetry methods recorded the highest response. In addition to the high oxidation rate of DA and the other biomolecule interferences available in the sample matrix used, which cause overlapping voltammograms, we aimed to differentiate them in a highly sensitive limit of detection range. The calibration curves for DA were obtained using the CV and DPV over the concentration range of 0.395–3.96 nM in 0.1 M phosphate buffer solution (PBS) at pH 7.4 with a correlation coefficient of 0.996 and a detection limit of 0.193 nM. The electrochemical technique was employed to detect DA molecules quantitatively in human blood plasma selected as real samples without applying any pre-treatment processes. MIP electrodes proved their ability to detect DA with high selectivity, even with epinephrine and norepinephrine competitor molecules and interferences, such as ascorbic acid (AA). The high level of recognition achieved by molecularly imprinted polymers (MIPs) is essential for many biological and pharmaceutical studies.
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Affiliation(s)
- Nemah Abu Shama
- Department of Analytical Chemistry, Faculty of Pharmacy, Near East University, Nicosia 99138, Cyprus;
| | - Süleyman Aşır
- Department of Materials Science and Nanotechnology Engineering, Near East University, Nicosia 99138, Cyprus
- Correspondence:
| | - Mehmet Ozsoz
- Department of Biomedical Engineering, Faculty of Engineering, Near East University, Nicosia 99138, Cyprus;
| | - Ilgım Göktürk
- Department of Chemistry, Faculty of Science, Hacettepe University, Beytepe, Ankara 06800, Turkey; (I.G.); (D.T.); (A.D.)
| | - Deniz Türkmen
- Department of Chemistry, Faculty of Science, Hacettepe University, Beytepe, Ankara 06800, Turkey; (I.G.); (D.T.); (A.D.)
| | - Fatma Yılmaz
- Chemistry Technology Division, Vocational School of Gerede, Bolu Abant Izzet Baysal University, Bolu 14900, Turkey;
| | - Adil Denizli
- Department of Chemistry, Faculty of Science, Hacettepe University, Beytepe, Ankara 06800, Turkey; (I.G.); (D.T.); (A.D.)
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17
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Painuli R, Raghav S, Jha PC, Athar M, Kumar D. Thermodynamics and kinetics to develop an analytical method for sensing of aqueous Hg(II) using caffeic acid decorated AgNPs. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2034012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ritu Painuli
- Department of Chemistry, Banasthali Vidyapith, Rajasthan, India
| | - Sapna Raghav
- Department of Chemistry, Banasthali Vidyapith, Rajasthan, India
| | - Prakash C. Jha
- Centre for Applied Chemistry, Central University of Gujarat, Gandhinagar, Gujarat, India
| | - Mohd Athar
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar, Gujarat, India
| | - Dinesh Kumar
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar, Gujarat, India
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18
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Sun Y, Yuan K, Mo X, Chen X, Deng Y, Liu C, Yuan Y, Nie J, Zhang Y. Tyndall-Effect-inspired assay with gold nanoparticles for the colorimetric discrimination and quantification of mercury ions and glutathione. Talanta 2022; 238:122999. [PMID: 34857332 DOI: 10.1016/j.talanta.2021.122999] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 11/15/2022]
Abstract
This work initially reports a new nanosening method for simple, sensitive, specific, visual detection of mercury (II) (Hg2+) and glutathione (GSH) using the Tyndall Effect (TE) of the same colloidal gold nanoparticle (GNP) probes for efficient colorimetric signaling amplification. For the TE-inspired assay (TEA) method, arginine (Arg) molecules are pre-modified on the GNPs' surfaces (Arg-GNPs). Upon the Hg2+ introduction, it can be specifically coordinated with the terminal -NH2 and -COOH groups of the Arg molecules to make the Arg-GNPs aggregate, producing a significantly-enhanced TE signal in the reaction solution after its irradiation by a 635-nm red laser pointer pen. On the other hand, the introduction of the GSH results in the production of the original Arg-GNPs' weak TE response, as it is able to bind such metal ion via mercury-thiol reactions to inhibit the above aggregation. Under the optimal conditions, the utility of the new TEA method is well demonstrated to quantitatively detect the Hg2+ and GSH with the aid of a smartphone as a portable TE reader during the linear concentration ranges of 50-3000 and 10-3000 nM, respectively. The detection limits for the Hg2+ and GSH are estimated to be as low as ∼3.5 and ∼0.3 nM, respectively. The recovery results obtained from the detection of Hg2+ in the complex tap and pond water samples and the assay of GSH in real human serum and urine samples are also satisfactory.
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Affiliation(s)
- Yao Sun
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Kaijing Yuan
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Xiaomei Mo
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Xuejiang Chen
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Yanan Deng
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Chang Liu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Yali Yuan
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Jinfang Nie
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China.
| | - Yun Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China.
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19
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Guo H, Peng L, Wu N, Liu B, Wang M, Chen Y, Pan Z, Liu Y, Yang W. A novel fluorescent Si/CDs for highly sensitive Hg2+ sensing in water environment. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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20
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Kan XT, Yao H, Niu YB, Hu YP, Zhang YM, Wei TB, Lin Q. Regulation of conjugate rigid plane structures for achieving transformation of fluorescence recognition properties. NEW J CHEM 2022. [DOI: 10.1039/d1nj05911d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Regulation of a conjugate rigid plane structure based on bisbenzimidazole derivatives to research the structure-effective relationship between conjugate systems size and fluorescence sensing properties.
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Affiliation(s)
- Xiao-Tong Kan
- Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. China
| | - Hong Yao
- Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. China
| | - Yan-Bing Niu
- Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. China
| | - Yin-Ping Hu
- Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. China
| | - You-Ming Zhang
- Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. China
- Deputy Director-General of Gansu Natural Energy Research Institute, Renmin Road 23, Lanzhou, Gansu, 730070, P. R. China
| | - Tai-Bao Wei
- Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. China
| | - Qi Lin
- Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. China
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21
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Zhang H, Zhong W, Yang Y, Liu G, Luo X. A controllable staining colorimetric method based on carboxylated cellulose membranes for early-warning and semi-quantitative detection of aflatoxins in water. Analyst 2022; 147:2549-2557. [DOI: 10.1039/d1an02355a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A controllable staining colorimetric method was proposed for antibody-free detection of AFs by exploiting controllable electrostatic-staining of CCMs with Hg2+-capped AuNPs.
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Affiliation(s)
- Heng Zhang
- School of Chemical Engineering and Pharmacy; Key Laboratory of Novel Biomass-based Environmental and Energy Materials in Petroleum and Chemical Industry, Wuhan Institute of Technology, LiuFang Campus, No. 206, Guanggu 1st Road, Donghu New & High Technology Development Zone, Wuhan 430205, Hubei Province, PR China
| | - Wenhui Zhong
- School of Chemical Engineering and Pharmacy; Key Laboratory of Novel Biomass-based Environmental and Energy Materials in Petroleum and Chemical Industry, Wuhan Institute of Technology, LiuFang Campus, No. 206, Guanggu 1st Road, Donghu New & High Technology Development Zone, Wuhan 430205, Hubei Province, PR China
| | - Yang Yang
- School of Chemical Engineering and Pharmacy; Key Laboratory of Novel Biomass-based Environmental and Energy Materials in Petroleum and Chemical Industry, Wuhan Institute of Technology, LiuFang Campus, No. 206, Guanggu 1st Road, Donghu New & High Technology Development Zone, Wuhan 430205, Hubei Province, PR China
| | - Genyan Liu
- School of Chemical Engineering and Pharmacy; Key Laboratory of Novel Biomass-based Environmental and Energy Materials in Petroleum and Chemical Industry, Wuhan Institute of Technology, LiuFang Campus, No. 206, Guanggu 1st Road, Donghu New & High Technology Development Zone, Wuhan 430205, Hubei Province, PR China
| | - Xiaogang Luo
- School of Chemical Engineering and Pharmacy; Key Laboratory of Novel Biomass-based Environmental and Energy Materials in Petroleum and Chemical Industry, Wuhan Institute of Technology, LiuFang Campus, No. 206, Guanggu 1st Road, Donghu New & High Technology Development Zone, Wuhan 430205, Hubei Province, PR China
- School of Materials Science and Engineering, Zhengzhou University, No. 100 Science Avenue, Zhengzhou City, 450001, Henan Province, PR China
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22
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Fluorescence-active and peroxidase-like expanded mesoporous silica-encapsulated ultrasmall Pt nanoclusters: a novel colorimetric/fluorescent dual-mode nanosensor for sensitive detection of mercury in medicinal and edible Pueraria lobata. Mikrochim Acta 2021; 189:18. [PMID: 34873660 DOI: 10.1007/s00604-021-05119-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 11/23/2021] [Indexed: 10/19/2022]
Abstract
A novel colorimetric/fluorescent dual-mode nanosensor for Hg2+ detection was constructed using expanded mesoporous silica (EMSN)-encapsulated ultrasmall platinum nanoclusters (EMSN@Pt NCs) with improved peroxidase-like and stable fluorescent activities. The sensing technique was based on the mechanism that the peroxidase mimetic activity and fluorescence intensity of EMSN@Pt NCs can be inhibited in the presence of Hg2+. In this sensing platform, a linear range of 5-50 nM with a detection limit of 1.78±0.38 nM and quantification limit of 5.93 nM was obtained via fluorescent analysis. A linear calibration curve from 0.25 to 200 nM with a detection limit of 8.25±0.51 nM and quantification limit of 27.47 nM was achieved via colorimetric analysis. The proposed dual-mode probe possesses excellent selectivity and reliability for Hg2+ detection, which can function as an efficient nanosensor for the quantitative determination of Hg2+ in Pueraria lobata.
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23
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Colorimetric Sensing with Gold Nanoparticles on Electrowetting-Based Digital Microfluidics. MICROMACHINES 2021; 12:mi12111423. [PMID: 34832834 PMCID: PMC8621347 DOI: 10.3390/mi12111423] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/14/2021] [Accepted: 11/16/2021] [Indexed: 12/18/2022]
Abstract
Digital microfluidic (DMF) has been a unique tool for manipulating micro-droplets with high flexibility and accuracy. To extend the application of DMF for automatic and in-site detection, it is promising to introduce colorimetric sensing based on gold nanoparticles (AuNPs), which have advantages including high sensitivity, label-free, biocompatibility, and easy surface modification. However, there is still a lack of studies for investigating the movement and stability of AuNPs for in-site detection on the electrowetting-based digital microfluidics. Herein, to demonstrate the ability of DMF for colorimetric sensing with AuNPs, we investigated the electrowetting property of the AuNPs droplets on the hydrophobic interface of the DMF chip and examined the stability of the AuNPs on DMF as well as the influence of evaporation to the colorimetric sensing. As a result, we found that the electrowetting of AuNPs fits to a modified Young–Lippmann equation, which suggests that a higher voltage is required to actuate AuNPs droplets compared with actuating water droplets. Moreover, the stability of AuNPs was maintained during the processing of electrowetting. We also proved that the evaporation of droplets has a limited influence on the detections that last several minutes. Finally, a model experiment for the detection of Hg2+ was carried out with similar results to the detections in bulk solution. The proposed method can be further extended to a wide range of AuNPs-based detection for label-free, automatic, and low-cost detection of small molecules, biomarkers, and metal ions.
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24
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Li XY, Zhang MM, Zhou XD, Hu JM. A functional peptide-mediated colorimetric assay for mercury ion based on dual-modified gold nanoparticles. Anal Biochem 2021; 631:114369. [PMID: 34516968 DOI: 10.1016/j.ab.2021.114369] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/09/2021] [Accepted: 09/06/2021] [Indexed: 11/29/2022]
Abstract
In the work, a rapid and accurate biosensor for mercury ions (Hg2+) was constructed, with which aggregation of dual-modified (DGPFHR- and CALNN-) gold nanoparticles (D/C-AuNPs) could be triggered by the high specificity of peptides to Hg2+. The given peptide DGPFHR possesses great capability of capturing Hg2+, accompanied by the conformational folding. Under the circumstances, D/C-AuNPs were employed as the detection probes to accomplish the quantitative analysis of Hg2+. This is primarily because the specific Hg2+-induced folding of peptides reduces the electrostatic repulsion and steric hindrance, thus accelerating the AuNPs aggregation. The principle and application potential of this proposal was proved by evidence. And the results demonstrated that Hg2+ ions could be selectively detected as low as 28 nM with a linear range of 100-800 nM. In consideration of superior simplicity, selectivity, accuracy and stability, the protocol was advantageous over other projects in practical measurement of various water samples.
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Affiliation(s)
- Xin-Yi Li
- The Centre of Analysis and Measurement of Wuhan University, Wuhan University, Wuhan, 430072, PR China
| | - Miao-Miao Zhang
- The Centre of Analysis and Measurement of Wuhan University, Wuhan University, Wuhan, 430072, PR China
| | - Xiao-Dong Zhou
- The Centre of Analysis and Measurement of Wuhan University, Wuhan University, Wuhan, 430072, PR China.
| | - Ji-Ming Hu
- The Centre of Analysis and Measurement of Wuhan University, Wuhan University, Wuhan, 430072, PR China.
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25
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Liu S, Tan S, Hu H, Chen Z, Pu S. Novel colorimetric and fluorescent chemosensor for Hg2+/Sn2+ based on a photochromic diarylethene with a styrene-linked pyrido[2,3-b]pyrazine unit. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113439] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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26
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Xu G, Zhang Q, Gao C, Ma L, Song P, Xia L. A label-free SERS sensor for the detection of Hg2+ based on phenylacetylene functionalized Ag nanoparticles. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106504] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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27
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Dual functional MOF as a selective fluorescent naked-eye detector and effective sorbent for mercury ion. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122267] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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28
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Uppa Y, Srijaranai S, Chanthai S. Surface Plasmon Resonance Sensor for Novel Detection of Histidine Based on the Hg 2+ Induced Aggregation of AuNPs Followed by Preconcentration with Chitosan Gel as Solid-phase Biosorbent. ANAL SCI 2021; 37:1741-1748. [PMID: 34176856 DOI: 10.2116/analsci.21p090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This research work aims to propose an extraction method using chitosan as the sorbent and gold nanoparticles (AuNPs) as the colorimetric sensor for the development of a simple, cost-effective, rapid, sensitive, and selective detection method for histidine. The colorimetric assay is based on the aggregation of AuNPs in the presence of Hg2+ ions and histidine. The state of AuNPs generally changes from dispersion to aggregation. The change in state is accompanied by a corresponding change in color (from red wine to blue). Therefore, the solid phase extraction (SPE) method using chitosan as the sorbent was used to extract the AuNPs to improve the sensitivity of detection. It was found that the extraction by means of a sensor system using chitosan could increase the detection signal for histidine by 10 times. The calibration curve, which is the plot of absorbance ratio (A650/A528) against the concentration of histidine, shows a linear relation in the concentration range of 100 - 800 nM. The limit of detection (LOD) and limit of quantitation (LOQ) of the method were found to be 99.88 and 107.45 nM, respectively. Good recoveries were also obtained (range: 99.75 - 104.43%) with relative standard deviations (RSDs) below 5.89% in real water samples. Moreover, this method can be used for the selective detection of histidine even in the presence of other amino acids. The proposed method has been successfully used in the determination of histidine in mineral water samples.
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Affiliation(s)
- Yuwapon Uppa
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University
| | - Supalax Srijaranai
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University
| | - Saksit Chanthai
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University
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29
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Li Y, Bian J, Lin T, Zhang Y, Liu X, Liu Y. Sensing of mercury and silver ions using branched Au nanoparticles prepared by hyperbranched polyethylenimine fabricated and capped AuNPs seeds. NANOTECHNOLOGY 2021; 32:375702. [PMID: 34044377 DOI: 10.1088/1361-6528/ac05eb] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/27/2021] [Indexed: 06/12/2023]
Abstract
Branched AuNPs usually have two or more local surface plasmon resonance (LSPR) absorption bands due to their structural anisotropy, and the LSPR performance is more sensitive to the changes of environmental refractive index than that of spherical AuNPs. The design and preparation of branched AuNPs as colorimetric probes is expected to improve the selectivity and sensitivity of detection of targets. In this paper, branched AuNPs were innovatively synthesized via hyperbranched polyethylenimine (HPEI) fabricated and capped AuNPs as seeds and cetyltrimethylammonium bromide (CTAB) as template agent. The branched AuNPs were characterized by TEM, DLS, zeta potentials and UV-vis spectra. Using the branched AuNPs as a colorimetric probe, the detection system for Hg2+and Ag+showed bright color changes from blue to orange and blue to green based on the morphological evolution of branched AuNPs. The branched AuNPs could selectively detect Hg2+and Ag+at concentrations as low as 77 and 140 nM, respectively. Moreover, this unusual colorimetric method has been successfully used in real water samples and has great potential as a simple, rapid, sensitive and selective method for the detection of Hg2+and Ag+.
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Affiliation(s)
- Yuxi Li
- School of Chemistry and Materials Science, Ludong University, Yantai 264001, People's Republic of China
| | - Jie Bian
- School of Chemistry and Materials Science, Ludong University, Yantai 264001, People's Republic of China
| | - Tao Lin
- School of Chemistry and Materials Science, Ludong University, Yantai 264001, People's Republic of China
| | - Yiyun Zhang
- School of Chemistry and Materials Science, Ludong University, Yantai 264001, People's Republic of China
| | - Xunyong Liu
- School of Chemistry and Materials Science, Ludong University, Yantai 264001, People's Republic of China
| | - Yi Liu
- School of Chemistry and Materials Science, Ludong University, Yantai 264001, People's Republic of China
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30
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Amourizi F, Dashtian K, Ghaedi M, Hosseinzadeh B. An asymmetric Schiff base-functionalized gold nanoparticle-based colorimetric sensor for Hg 2+ ion determination: experimental and DFT studies. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:2603-2611. [PMID: 34027952 DOI: 10.1039/d1ay00408e] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We report a colorimetric sensor for the detection of Hg2+ ions utilizing surface-modified gold nanoparticles. Gold nanoparticles (GNPs) were synthesized by direct reduction and were subsequently functionalized using Schiff base ligands. Schiff base ligands as electron transfer agents have been frequently used for the determination of heavy metal ions. From the spectroscopic analysis, it was found that the mechanism could be defined as coordination between azomethine nitrogen and the carbonyl oxygen of the ligand with Hg2+ ions. The affinity of Hg2+ ions towards the bidentate Schiff base on the GNPs result from their self-aggregation and investigated to be a powerful asset for the development of Hg2+ ion-selective sensors, which is accompanied by a visible color change from pink to purple or can be detect by UV-Vis spectroscopy. The optimized structures and binding mechanisms were supported with a high correlation and agreement via spectroscopy and DFT calculations. These simple colorimetric tests can be extended for the rapid pre-screening of a wide variety of heavy metal ions for onsite detection and mitigation.
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Govindasamy V, Perumal S, Sekar I, Madheswaran B, Karuppannan S, Kuppannan SB. Phenothiazine-Thiophene Hydrazide Dyad: An Efficient "On-Off" Chemosensor for Highly Selective and Sensitive Detection of Hg 2+ Ions. J Fluoresc 2021; 31:667-674. [PMID: 33560513 DOI: 10.1007/s10895-021-02690-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 01/19/2021] [Indexed: 12/17/2022]
Abstract
A new phenothiazine-thiophene hydrazone based ((10-ethyl-10H-phenothiazine-3,7-diyl)bis(methanylylidene))bis(thiophene-2-carbohydrazide) (PHT) chemosensor was synthesized via a single-step reaction and utilized as fluorescence "On-Off" sensor towards Hg2+ ion. The PHT was fully characterized by FT-IR, 1H-NMR, and ESI-Mass spectral analysis. The PHT probe was efficiently used for the selective detection of Hg2+ ion in the presence of other metal ions. Further, the stoichiometry of the PHT with Hg2+ complex was confirmed by Job's plot analysis. The limit of detection (LOD) value of the probe PHT was found to be 0.44 × 10-8 M.
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Affiliation(s)
- Vinoth Govindasamy
- Department of Chemistry, School of Physical Sciences, Periyar University, Periyar Palkalai Nagar, Salem, Tamil Nadu, 636011, India
| | - Sakthivel Perumal
- Department of Chemistry, Anna University-University College of Engineering, Dindigul, Tamil Nadu, 624622, India
| | - Indira Sekar
- Department of Chemistry, School of Physical Sciences, Periyar University, Periyar Palkalai Nagar, Salem, Tamil Nadu, 636011, India
| | - Bharathi Madheswaran
- Department of Chemistry, School of Physical Sciences, Periyar University, Periyar Palkalai Nagar, Salem, Tamil Nadu, 636011, India
| | - Sekar Karuppannan
- Department of Chemistry, Anna University-University College of Engineering, Dindigul, Tamil Nadu, 624622, India.
| | - Shanmuga Bharathi Kuppannan
- Department of Chemistry, School of Physical Sciences, Periyar University, Periyar Palkalai Nagar, Salem, Tamil Nadu, 636011, India.
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Rapid and ultrasensitive detection of mercury ion (II) by colorimetric and SERS method based on silver nanocrystals. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105790] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Montes-García V, Squillaci MA, Diez-Castellnou M, Ong QK, Stellacci F, Samorì P. Chemical sensing with Au and Ag nanoparticles. Chem Soc Rev 2021; 50:1269-1304. [PMID: 33290474 DOI: 10.1039/d0cs01112f] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Noble metal nanoparticles (NPs) are ideal scaffolds for the fabrication of sensing devices because of their high surface-to-volume ratio combined with their unique optical and electrical properties which are extremely sensitive to changes in the environment. Such characteristics guarantee high sensitivity in sensing processes. Metal NPs can be decorated with ad hoc molecular building blocks which can act as receptors of specific analytes. By pursuing this strategy, and by taking full advantage of the specificity of supramolecular recognition events, highly selective sensing devices can be fabricated. Besides, noble metal NPs can also be a pivotal element for the fabrication of chemical nose/tongue sensors to target complex mixtures of analytes. This review highlights the most enlightening strategies developed during the last decade, towards the fabrication of chemical sensors with either optical or electrical readout combining high sensitivity and selectivity, along with fast response and full reversibility, with special attention to approaches that enable efficient environmental and health monitoring.
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Affiliation(s)
- Verónica Montes-García
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France.
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Abdolmohammad-Zadeh H, Azari Z, Pourbasheer E. Fluorescence resonance energy transfer between carbon quantum dots and silver nanoparticles: Application to mercuric ion sensing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 245:118924. [PMID: 32950856 DOI: 10.1016/j.saa.2020.118924] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 09/02/2020] [Accepted: 09/05/2020] [Indexed: 05/20/2023]
Abstract
Fluorescence resonance energy transfer (FRET) process as a practical and competitive sensing strategy was utilized between carbon quantum dots (C-dots) and silver nanoparticles (Ag NPs) for the determination of mercuric ions. The novel synthesized C-dots with the quantum yield of 84% acted as the donor and Ag NPs operated as the acceptor in the FRET process leading to the fluorescence quenching of the C-dots. In the presence of Hg(II) ions, the FRET-quenched fluorescence emission of the C-dots-Ag NPs system was recovered owing to oxidation of Ag NPs by Hg(II) ions, so that the turn-on fluorescence intensity was directly proportional to the Hg(II) ion concentration. Accordingly, combination of the FRET system with the redox reaction was firstly utilized to construct an innovative turn-off/on fluorescent sensor for the quantification of Hg(II) ion. The calibration plot was linear in the concentration range 0.5-500.0 nmol L-1 with a determination coefficient (R2) of 0.9965. The limit of detection and limit of quantification were 0.10 and 0.35 nmol L-1, respectively, according to the IUPAC definition. The method was applied for the determination of Hg(II) ion in lake water, wastewater and tea samples, and the proper relative recoveries (98.0-104.0%) were obtained for the spiked samples. The method has high potential to diagnose trace values of mercuric ions in real samples with high sensitivity and repeatability.
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Affiliation(s)
- Hossein Abdolmohammad-Zadeh
- Analytical Spectroscopy Research Lab., Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, 35 Km Tabriz-Marageh Road, P.O. Box 53714-161, Tabriz 5375171379, Iran.
| | - Zhila Azari
- Analytical Spectroscopy Research Lab., Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, 35 Km Tabriz-Marageh Road, P.O. Box 53714-161, Tabriz 5375171379, Iran
| | - Eslam Pourbasheer
- Department of chemistry, University of Mohaghegh Ardabili, Ardabil, Iran
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Deng Z, Jin W, Yin Q, Huang J, Huang Z, Fu H, Yuan Y, Zou J, Nie J, Zhang Y. Ultrasensitive visual detection of Hg2+ ions via the Tyndall effect of gold nanoparticles. Chem Commun (Camb) 2021; 57:2613-2616. [DOI: 10.1039/d0cc08003a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This work describes a new nanosensor for one-step ultrasensitive naked-eye detection of Hg2+ ions based on the target-triggered aggregation of gold nanoparticles showing a dramatically enhanced Tyndall effect.
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Chen X, Sun Y, Mo X, Gao Q, Deng Y, Hu M, Zou J, Nie J, Zhang Y. On-site, rapid and visual method for nanomolar Hg 2+ detection based on the thymine–Hg 2+–thymine triggered “double” aggregation of Au nanoparticles enhancing the Tyndall effect. RSC Adv 2021; 11:36859-36865. [PMID: 35494369 PMCID: PMC9043572 DOI: 10.1039/d1ra07211k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/08/2021] [Indexed: 01/07/2023] Open
Abstract
This work describes a new nanosensor for the simple, rapid, portable, colorimetric analysis of mercury(ii) (Hg2+) ions by combining the sensitive Tyndall effect (TE) of colloidal Au nanoparticles (AuNPs) with specific thymine–Hg2+–thymine (T–Hg2+–T) coordination chemistry for the first time. For the TE-inspired assay (TEA), in the presence of Hg2+ in a sample, the analyte can selectively mediate the hybridization of three types of flexible single-stranded DNAs (ssDNAs) to form stable rigid double-stranded DNAs (dsDNAs) via the T–Hg2+–T ligand interaction. Subsequent self-assembly of the dsDNAs with terminal thiol groups on the AuNPs' surfaces led to their “double” aggregation in addition to the lack of sufficient ssDNAs as the stabilizing molecules in a high-salt solution, resulting in a remarkably enhanced TE signal that positively relied on the Hg2+ level. The results demonstrated that such a TEA method enabled rapid naked-eye qualitative analysis of 625 nM Hg2+ within 10 min with an inexpensive laser pointer pen as an inexpensive handheld light source to generate the TE response. Making use of a smartphone for portable TE readout could further quantitatively detect the Hg2+ ions in a linear concentration range from 156 to 2500 nM with a limit of detection as low as 25 nM. Moreover, the developed equipment-free nanosensor was also used to analyze the Hg2+ ions in real samples including tap water, drinking water, and pond water, the obtained recoveries were within the range of 93.68 to 108.71%. To the best of our knowledge, this is the first report of using the AuNPs and functional nucleic acids to design a TE-based biosensor for the analysis of highly toxic heavy metal ions. A new equipment-free colorimetric nanosensor was initially developed for quantitative point-of-need detection of nanomolar Hg2+ ions based on the enhancement in Tyndall effect of Au nanoparticles via their target-triggered “double” aggregation.![]()
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Affiliation(s)
- Xuejiang Chen
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Yao Sun
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Xiaomei Mo
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Qian Gao
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Yanan Deng
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Miao Hu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Jianmei Zou
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Jinfang Nie
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Yun Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
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Khan MA, Meena S, Alam MA, Ghosh S. A solvent sensitive coumarin derivative coupled with gold nanoparticles as selective fluorescent sensor for Pb 2+ ions in real samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 243:118810. [PMID: 32823000 DOI: 10.1016/j.saa.2020.118810] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 07/20/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
A coumarin based fluorescent molecule, 3-amino-2-cynano-3-(7-diethylamino-2-oxo-2H-chromen-3-yl)-acrylic acid ethyl ester (1) has been synthesized and characterised. Photophysical studies of 1 exhibit polarity dependent shift of its emission maxima which have been explained on the basis the existence of polar excited state of the molecule. Combination of compound 1 and citrate capped AuNPs (AuNPs/1 conjugate) has been used as a sensing tool for heavy metals. AuNPs/1 conjugate has been found to detect Pb2+ selectively by naked-eye color change as well as fluorescence enhancement. On addition of molecule 1 to gold nanoparticles solution, the color of the solution becomes reddish followed by quenching in fluorescence intensity. With gradual addition of Pb2+, the solution of AuNPs/1 conjugate becomes violet accompanied by a fluorescence enhancement. Excited state lifetime measurement revealed that compound 1 exhibits very fast decay pattern in aqueous medium whereas in AuNPs medium the lifetime of 1 increases. Upon addition of Pb2+ ions to that AuNPs/1 solution the lifetime of 1 decreases again. Based on the experimental observations the mechanism of sensing of lead has been proposed thoroughly. Initially compound 1 gets absorbed on the surface of the spherical gold nanoparticles. When Pb2+ is added, probably gold nanoparticles aggregates to form bigger particles by releasing compound 1 from its surface to show fluorescence enhancement.
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Affiliation(s)
- Mehebub Ali Khan
- Department of Chemistry, Aliah University, IIA/27, Action Area II, Newtown, Kolkata 700 160, India
| | - Surendra Meena
- Indian Institute of Technology, Roorkee, Uttarakhand 247667, India
| | - Md Akhtarul Alam
- Department of Chemistry, Aliah University, IIA/27, Action Area II, Newtown, Kolkata 700 160, India.
| | - Soumen Ghosh
- Department of Chemistry, Aliah University, IIA/27, Action Area II, Newtown, Kolkata 700 160, India.
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SPR nanosensor based on molecularly imprinted polymer film with gold nanoparticles for sensitive detection of aflatoxin B1. Talanta 2020; 219:121219. [DOI: 10.1016/j.talanta.2020.121219] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/21/2020] [Accepted: 05/25/2020] [Indexed: 12/19/2022]
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Guo M, Chi J, Li Y, Waterhouse GIN, Ai S, Hou J, Li X. Fluorometric determination of mercury(II) based on dual-emission metal-organic frameworks incorporating carbon dots and gold nanoclusters. Mikrochim Acta 2020; 187:534. [PMID: 32870375 DOI: 10.1007/s00604-020-04508-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 08/18/2020] [Indexed: 10/23/2022]
Abstract
Carbon dots and gold nanoclusters co-encapsulated by zeolitic imidazolate framework-8 (CDs/AuNCs@ZIF-8) have been obtained at room temperature. The composite has been applied to the ratiometric fluorescence determination of mercury(II). The composite shows fluorescence emission maxima at 440 and 640 nm under 360 nm excitation, due to the CDs and AuNCs, respectively (associated quantum yields were 18% and 17%, respectively). In the presence of Hg2+, the fluorescence at about 640 nm is quenched, while the fluorescence at about 440 nm is unaffected. The CDs/AuNCs@ZIF-8 composite allows the sensitive detection of Hg2+, with the fluorescence intensity ratio (I640/I440) decreasing linearly with Hg2+ concentration over the range 3-30 nM. The fluorescence emission of the composite changes color from red to blue with increasing Hg2+ under UV excitation, which can easily be discerned visually. This visual detection of Hg2+ is due to the high fluorescence quantum yields of the CDs and AuNCs and the ~ 200 nm separation between the two emission maxima. Graphical abstract (A) Schematic diagram showing the operating principle of the determination for Hg(II). (B) Digital graph of the solutions in absence and presence of 30 nM Hg(II) under a portable UV lamp.
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Affiliation(s)
- Manli Guo
- College of Food Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, People's Republic of China
| | - Jingtian Chi
- College of Food Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, People's Republic of China
| | - Yijing Li
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, People's Republic of China
| | - Geoffrey I N Waterhouse
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, People's Republic of China.,School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Shiyun Ai
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, People's Republic of China
| | - Juying Hou
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, People's Republic of China.
| | - Xiangyang Li
- College of Food Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, People's Republic of China.
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Dziike F, Franklyn PJ, Hlekelele L, Durbach S. Recovery of waste gold for the synthesis of gold nanoparticles supported on radially aligned nanorutile: the growth of carbon nanomaterials. RSC Adv 2020; 10:28090-28099. [PMID: 35519089 PMCID: PMC9055640 DOI: 10.1039/d0ra03797d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 07/08/2020] [Indexed: 11/21/2022] Open
Abstract
Precious and expensive metals are lost each year through the discarding of old jewellery pieces and mine tailings. In this work, small amounts of gold were recovered by digestion with aqua regia from waste tailings. The recovered gold in the form of HAuCl4 was then used to deposit Au0 onto radially aligned nanorutile (RANR) to form a supported catalyst material. The support material, RANR, was synthesized using the hydrothermal technique whereas the deposition of gold was achieved using the deposition–precipitation with urea method at various loadings. Electron microscopy was used to show that the structure of the support is a sphere formed by multiple nanorods aligned in a radial structure. The Au nanoparticles were observed at the tips of the nanorods. It was confirmed by XRD that the support was indeed a rutile phase of TiO2 and that the Au nanoparticles had a face-centred cubic structure. The various catalysts were then used to synthesize carbon nanomaterials (CNMs) using the chemical vapour deposition technique. A parametric study varying the reaction temperature, duration and carbon source gas flow rate was conducted to study the effects these conditions have on the structural properties of the resulting CNMs. Here, it was found that mainly carbon nanofibers were formed and that the different reaction conditions influenced their graphicity, width, structure and thermal properties. A hydrothermal method was used to prepare rutile TiO2 dandelions. A deposition–precipitation method using urea (DPU) was used to load Au metal nanoparticles in calculated weight percentages and the Au/RANR catalysts where used to synthesise CNFs in a CVD reaction.![]()
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Affiliation(s)
- Farai Dziike
- Molecular Science Institute, School of Chemistry, University of the Witwatersrand Johannesburg 2050 South Africa .,DST-NRF Centre of Excellence in Strong Materials, University of the Witwatersrand, WITS 2050 Johannesburg South Africa
| | - Paul J Franklyn
- Molecular Science Institute, School of Chemistry, University of the Witwatersrand Johannesburg 2050 South Africa
| | - Lerato Hlekelele
- Polymers and Composites, Materials and Manufacturing Science, CSIR Pretoria 0001 South Africa
| | - Shane Durbach
- Molecular Science Institute, School of Chemistry, University of the Witwatersrand Johannesburg 2050 South Africa .,DST-NRF Centre of Excellence in Strong Materials, University of the Witwatersrand, WITS 2050 Johannesburg South Africa
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Liu W, Tian L, Du J, Wu J, Liu Y, Wu G, Lu X. Triggered peroxidase-like activity of Au decorated carbon dots for colorimetric monitoring of Hg 2+ enrichment in Chlorella vulgaris. Analyst 2020; 145:5500-5507. [PMID: 32597429 DOI: 10.1039/d0an00930j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Developing a rapid, low-cost, and multimode detection method for heavy metal ions remains a compelling goal for many applications, including food safety, environmental and biological analysis. This study investigated the influence of Hg2+ on the peroxidase-like activity of gold nanoparticles (GNPs) decorated on carbon dots (CDs) from lysine (denoted as GNP@CDs). A new type of Hg2+-triggered peroxidase-like activity of GNP@CDs was discovered, which could catalyze the oxidation of the colorless 3,3',5,5'-tetramethylbenzidine (TMB) into blue TMB. Based on the regulation of the catalytically triggered activity, a sensitive colorimetric method for the detection of Hg2+ was developed, with a linear range of 7-150 nM, providing a limit of detection as low as 3.7 nM. The sensor is simple and rapid, and was successfully applied to the detection of Hg2+ enrichment in chlorella, suggesting a promising application in biological analysis.
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Affiliation(s)
- Wene Liu
- College of Life Sciences, Northwest Normal University, Lanzhou 730070, Gansu, China.
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Sun X, Zhao Y, Cui X, Liu R, Yu M, Fei Q, Liu Q, Feng G, Shan H, Huan Y. Colorimetric sensing of iodide ions based on unmodified gold nanoparticles and the distinctive antiaggregation-to-aggregation process. LUMINESCENCE 2020; 35:1036-1042. [PMID: 32515169 DOI: 10.1002/bio.3813] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/29/2020] [Accepted: 04/05/2020] [Indexed: 12/12/2022]
Abstract
A highly sensitive and selective colorimetric analysis method based on unmodified gold nanoparticles (AuNPs) to detect iodide ions (I- ) in solution in the presence of hexadecyl trimethyl ammonium bromide (CTAB) and mercury ions (Hg2+ ) has been successfully developed. Hg2+ could form a gold amalgam with AuNPs to protect AuNPs from CTAB-induced aggregation caused by the electrostatic attraction between CTAB and citrate ion-covered AuNPs. When a mixture of Hg2+ and I- was added to the solution of AuNPs, the formation of the HgI2 complex destroyed the protection of Hg2+ for AuNPs, which led to the aggregation of AuNPs accompanied with the change in colour of the solution from red to grey black and decrease in the absorbance of AuNPs at 520 nm. There was a good linear relationship between A520nm and I- concentration from 0 to 800 nM with a low limit of detection (LOD) of 4.2 nM. Furthermore, this simple and reliable colorimetric sensor has been applied successfully to the detection of I- in practical samples.
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Affiliation(s)
- Xiaoxiao Sun
- College of Chemistry, Jilin University, Changchun, 130023, People's Republic of China
| | - Yuqi Zhao
- College of Chemistry, Jilin University, Changchun, 130023, People's Republic of China
| | - Xiaoqian Cui
- Department of Emergency and Critical Care, the Second Hospital of Jilin University, Changchun, 130041, People's Republic of China
| | - Ruxin Liu
- College of Chemistry, Jilin University, Changchun, 130023, People's Republic of China
| | - Miao Yu
- College of Chemistry, Jilin University, Changchun, 130023, People's Republic of China
| | - Qiang Fei
- College of Chemistry, Jilin University, Changchun, 130023, People's Republic of China
| | - Qingwen Liu
- College of Chemistry, Jilin University, Changchun, 130023, People's Republic of China
| | - Guodong Feng
- College of Chemistry, Jilin University, Changchun, 130023, People's Republic of China
| | - Hongyan Shan
- College of Chemistry, Jilin University, Changchun, 130023, People's Republic of China
| | - Yanfu Huan
- College of Chemistry, Jilin University, Changchun, 130023, People's Republic of China
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Ling R, Zhang Q, Ren H, Tursen J, Bi J, Wu Z, Qin W, Zhang C. Label-free, sensitive colorimetric detection of mercury(II) by target-disturbed in situ seeding growth of gold triangular nanoprisms. NANOTECHNOLOGY 2020; 31:225501. [PMID: 32050186 DOI: 10.1088/1361-6528/ab7584] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Gold nanomaterials have been used extensively in colorimetric detection of mercuric ions (Hg2+) due to their shape- and size-dependent, ultrastrong localized surface plasmon resonance (LSPR). Conventional detection was performed by first synthesizing the nanomaterials, and then applying them to signal-transducing reactions. We herein report a convenient method for detecting Hg2+ based on gold triangular nanoprisms (AuTNPs). During the seeding-growth process, Hg2+ added to the growth solution was co-reduced and deposited on the high-energy facets of the gold seeds, affecting the deposition patterns of the subsequently generated Au0 and ultimately leading to the formation of defective AuTNPs. Morphological changes were reflected by the in-plane dipole LSPR wavelength shift, which was proportionally related to the concentration of Hg2+. To improve the selectivity, the interference from Ag+ was eliminated by a stepwise preparation-selective precipitation approach. Under the optimized conditions, Hg2+ could be selectively detected with 20 min, with a detection limit of 0.12 nM. Finally, the method was successfully applied to detecting trace Hg2+ in fortified drinking, mineral and rain water samples, with recoveries ranging from 95.17% to 110.6%.
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Affiliation(s)
- Rui Ling
- College of Chemistry, Beijing Normal University, No. 19, XinJieKouWai Street, Beijing 100875, People's Republic of China
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Li H, Huang X, Mehedi Hassan M, Zuo M, Wu X, Chen Y, Chen Q. Dual-channel biosensor for Hg2+ sensing in food using Au@Ag/graphene-upconversion nanohybrids as metal-enhanced fluorescence and SERS indicators. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104563] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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45
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Date Y, Masaki H, Aota A, Sasaki K, Namiki Y, Glass TR, Ohmura N. Simplified Mercury Extraction from Coal Fly Ash for Quantification of Total Mercury by ELISA-based Immunoassay. ANAL SCI 2020; 36:453-457. [PMID: 31839662 DOI: 10.2116/analsci.19p334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A simplified two-step mercury extraction procedure enabled the selective and reproducible mercury recovery from actual coal fly ash (CFA). The optimized extraction procedure involving conventional enzyme-linked immunosorbent assay (ELISA)-based immunoassay allowed the ultra-sensitive quantification of total mercury content in CFA. The total mercury content of 41 CFA samples were successfully determined using the above-mentioned method, and the results were in agreement with those obtained by standard instrumental analysis (thermal decomposition atomic absorption spectrometry) within a 15% coefficient of variation. Our method for total mercury quantification is not only simple but suitable for management of the mercury content at coal-fired electric power plants and landfill sites, which deal with large amounts of waste CFA.
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Affiliation(s)
- Yasumoto Date
- Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry
| | - Hiroyuki Masaki
- Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry
| | - Arata Aota
- Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry
| | - Kazuhiro Sasaki
- Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry
| | | | | | - Naoya Ohmura
- Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry
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Şener G, Denizli A. Colorimetric Sensor Array Based on Amino Acid-Modified Gold Nanoparticles for Toxic Metal Ion Detection in Water. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2020; 2027:75-80. [PMID: 31309473 DOI: 10.1007/978-1-4939-9616-2_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Several chromatographic and spectroscopic methods are available for the detection of toxic mercury (Hg2+) in water; however simple, rapid, inexpensive, and sensitive methods are still needed. In this chapter, we describe a facile, very sensitive, and rapid method for the colorimetric detection of Hg2+ in water with the detection limit of 2.9 nM. This simple procedure is based on the lysine-induced aggregation of citrate-capped gold nanoparticles (AuNPs) in the presence of Hg2+ ions.
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Affiliation(s)
- Gülsu Şener
- Department of Chemistry, Hacettepe University, Ankara, Turkey
| | - Adil Denizli
- Department of Chemistry, Hacettepe University, Ankara, Turkey.
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Li YK, Yang T, Chen ML, Wang JH. Recent Advances in Nanomaterials for Analysis of Trace Heavy Metals. Crit Rev Anal Chem 2020; 51:353-372. [PMID: 32182101 DOI: 10.1080/10408347.2020.1736505] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In an effort to achieve high sensitivity analysis methods for ultra-trace levels of heavy metals, numerous new nanomaterials are explored for the application in preconcentration processes and sensing systems. Nanomaterial-based methods have proven to be effective for selective analysis and speciation of heavy metals in combination with spectrometric techniques. This review outlined the different types of nanomaterials applied in the field of heavy metal analysis, and concentrated on the latest developments in various new materials. In particular, the functionalization of traditional materials and the exploitation of bio-functional materials could increase the specificity to target metals. The hybridization of multiple materials could improve material properties, to build novel sensor system or achieve detection-removal integration. Finally, we discussed the future perspectives of nanomaterials in the heavy metal preconcentration and sensor design, as well as their respective advantages and challenges. Despite impressive progress and widespread attention, the development of new nanomaterials and nanotechnology is still hampered by numerous challenges, particularly in the specificity to the target and the anti-interference performance in complex matrices.
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Affiliation(s)
- Yi-Kun Li
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China
| | - Ting Yang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China
| | - Ming-Li Chen
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China.,Analytical and Testing Center, Northeastern University, Shenyang, China
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China
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Wang J, Liu X, Huang L, Jin J, Jiang C, Li D, Wen H, Hu J. Controllable and robust dual-emissive quantum dot nanohybrids as inner filter-based ratiometric probes for visualizable melamine detection. NANOSCALE 2020; 12:4562-4572. [PMID: 32043096 DOI: 10.1039/c9nr08849k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The ratiometric fluorescence technique is of great interest due to its visualization characteristics. The construction of a reliable fluorescent ratiometric nanoprobe for high-sensitivity visual quantification is highly sought after but it is limited by poor stability and controllability. Herein, we report a robust dual-emissive quantum dot nanohybrid with precise color tunability and demonstrate its potential as a two-signal-change ratiometric probe for visual detection. A novel assembly strategy was developed for spatially implanting hydrophobic green and red quantum dots (QDs) into a silica scaffold to form a dual-emissive hierarchical fluorescent silica nanohybrid. The fluorescence intensity ratio and color of the nanohybrid were precisely tailored by altering the amounts of green and red QDs. Particularly, after the alkylsilane-mediated phase transfer and exterior silica shell growth, the nanohybrid exhibited the well-preserved fluorescence features of the original QDs and robust optical/colloid stability. An inner filter-based ratiometric nanoprobe for the visual determination of melamine was ultimately devised by combining the spectra-overlapped two-colored fluorescent nanohybrid with analyte-specific gold nanoparticles. Furthermore, based on the reversible fluorescence signal changes in two-colored QDs induced by melamine, a logic gate strategy for melamine monitoring was constructed. The newly developed fluorescent ratiometric nanoprobe shows great prospects for the visual and quantitative determination of analytes in a complex biological matrix.
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Affiliation(s)
- Jing Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P.R. China.
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Amin NU, Siddiqi HM, Kun Lin Y, Hussain Z, Majeed N. Bovine Serum Albumin Protein-Based Liquid Crystal Biosensors for Optical Detection of Toxic Heavy Metals in Water. SENSORS (BASEL, SWITZERLAND) 2020; 20:E298. [PMID: 31948064 PMCID: PMC6982898 DOI: 10.3390/s20010298] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/17/2019] [Accepted: 12/31/2019] [Indexed: 01/05/2023]
Abstract
A new methodology involving the use of Bovine Serum Albumin (BSA) as a probe and liquid crystal (LC) as a signal reporter for the detection of heavy metal ions in water at neutral pH was developed. BSA acted as a multi-dentate ligand for the detection of multiple metal ions. The LC sensor was fabricated by immobilizing 3 µg mL-1 BSA solution on dimethyloctadecyl-[3-(trimethoxysilyl)propyl]ammonium chloride (DMOAP)-coated glass slides. In the absence of heavy metal ions, a dark optical image was observed, while in their presence, a dark optical image turned to bright. The optical response was characterized by using a polarized optical microscope (POM). The BSA based LC sensor selectively detected toxic metal ions as compared to s block metal ions and ammonium ions in water. Moreover, the limit of detection was found to be very low (i.e., 1 nM) for the developed new biosensor in comparison to reported biosensors.
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Affiliation(s)
- Noor ul Amin
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan; (N.u.A.); (N.M.)
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Humaira Masood Siddiqi
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan; (N.u.A.); (N.M.)
| | - Yang Kun Lin
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Zakir Hussain
- School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), H-12, Islamabad 44000, Pakistan;
| | - Nasir Majeed
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan; (N.u.A.); (N.M.)
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El-Maghrabey M, El-Shaheny R, Belal F, Kishikawa N, Kuroda N. Green Sensors for Environmental Contaminants. NANOTECHNOLOGY IN THE LIFE SCIENCES 2020. [DOI: 10.1007/978-3-030-45116-5_17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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